I have rings, but no fingers. I orbit, but never wander. What am I?

I swell beneath the moon’s cold gaze, Retreat, return in measured ways. I change the shore, the mind, the year, A rising force both far and near. You feel me shift in blood and wave, The cyclic pull you cannot save.

When nature is troubled and taken apart. I come with the elements and a little bit of heart. Five rings together, I come forth with force. Always remember, THE POWER IS YOURS.

Named for a distant planet, and yet found on Earth. Baked and scorched as I circle the heavens, yet I'll go to pieces if I lose my cool on the ground. A staple of alchemical formulae, once thought of as alive but I often bring death. Which element am I?

I consider myself quite the individual. When my life’s over I leave a shiny residual. I float, and I flitter swirling like glitter A finger may catch me But only, momentarily